Stephanie Fondue was a nude model and auditioned for the director in a hotel. When asked to disrobe, she had no problems being nude. She was considered by the director as the most comfortable of the cheerleaders being naked.
The school bus driver was the actual driver assigned to drive the school bus for the film. He was not an actor. The director asked him if he wanted to be in the movie and have a love scene while driving the bus. The driver quickly agreed to be in the movie.
The original financier of the movie had an objection to the movie. He had a problem with the idea that anyone would lust after cheerleaders in high schools. He felt that since they weren't adults, people would have a problem fantasizing about them.
The erotic scene with Kimberly Hyde and the gym coach was cut down because the MPAA felt that the coach's hands were suggesting a sex act. It actually wasn't a sex act at all. The director actually had the coach 'hide' Kimberly's private area because Kimberly didn't want to show it on film.
The football team was composed of actual football players. When the initiation shower scene was filmed, many of the football players were shy and drank beer to build up their courage to be filmed nude. Many of them did the scene in their underwear covered by towels.